New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 588th installment in their series of digital spreadsheet magic tricks, you'll learn how to determine whether an employee is exempt from a tax using a VLOOKUP in an IF function, and if not use a second VLOOKUP lookup query to look in tax tables to look up and calculate the tax